Method of reducing chatter
US8513340B2 · kind B2 · utility
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26References
19Claims
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Key dates
| Filing date | Apr 8, 2011 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Jun 24, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2948/926
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for reducing chatter in an extrusion process, which includes the steps of preparing an extrusion composition by combining a polymer composition with a chatter-reducing formulation, and extruding the extrusion composition to provide a substantially continuous extrudate. The chatter-reducing formulation comprises an alkyltin mercaptide and dibutyltin dilaurate. The resultant extrudate exhibits reduced chatter, which is categorized according to the Reed Scale as less than or equal to 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.